Jianzhong Xia

Solubility of carbon dioxide in aqueous solutions containing sodium acetate or ammonium acetate at temperatures from 313 to 433 K and pressures up to 10 MPa

The solubility of carbon dioxide was measured in aqueous solutions containing the single salts sodium acetate and ammonium acetate corresponding to salt molalities in the liquid phase of about 4 mol/kg and 6 mol/kg in the temperature range from 313 K to 433 K at total pressures up to 10 MPa. Pitzers semiempirical model for the excess Gibbs energy of aqueous electrolyte solutions is used to correlate the new data. Experimental results are reported and compared to correlations.

Solubility of hydrogen sulfide in aqueous solutions of single strong electrolytes sodium nitrate, ammonium nitrate, and sodium hydroxide at temperatures from 313 to 393 K and total pressures up to 10 MPa

Abstract New experimental results for the solubility of hydrogen sulfide in aqueous solutions of the single strong electrolytes sodium nitrate, ammonium nitrate, and sodium hydroxide at temperatures from 313 to 393 K and total pressures up to 10 MPa are reported. As in the strong electrolyte-free system, a second — hydrogen sulfide-rich — liquid phase is observed at high hydrogen sulfide concentrations. A thermodynamic model for describing the phase equilibrium is presented. Calculations are compared with the new experimental data.

On the solubility of sour gases in aqueous electrolyte solutions: New experimental data and correlation

This contribution reports on the solubility of a single weak acid gas (carbon dioxide and hydrogen sulfide) in aqueous solutions containing a single strong electrolyte (acetic acid, sodium acetate or ammonium acetate). New experimental results are correlated with a modified Pitzer model for the Gibbs excess energy of aqueous electrolyte solutions.